Question

If a, b, c, d, e are five consecutive odd integers, what is their average?

• A. a+4
• B. $\frac{abcde}{5}$
• C. 5(a+b+c+d+e)
• D. None of the above

Answer 1

Answer: (A)

a+4

Answer 2

a, b, c, d, e are five consecutive odd numbers then,
$b = a + 2, c = a + 4, d = a + 6, e = a + 8$
Sum of all the five consecutive number=$a+b+c+d+e$
$a + (a + 2) + (a + 4) + (a + 6) + (a + 8)$
$=5a + 20$
$Average=\frac{(Sum of all the terms)}{(Total number of terms)}$
$=\frac{(5a + 20)}{5}$
$\therefore a + 4$
The correct answer is (A): a+4